SYSTEM OF AN ENGINE AND CORRESPONDING APPARATUS

(19)

(11)

EP 3 309 364 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	09.05.2018 Bulletin 2018/19

(43)	Date of publication A2:
	18.04.2018 Bulletin 2018/16

(21)	Application number: 17180835.5

(22)	Date of filing: 11.07.2017

(51)

International Patent Classification (IPC):

F01D 11/18^(2006.01)

F01D 25/24^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME
	Designated Validation States:
	MA MD

(30)

Priority:

18.07.2016 US 201615212849

(71)	Applicant: United Technologies Corporation
	Farmington, CT 06032 (US)

(72)	Inventors:
	MOUZA, Louis R. Haverhill, MA 01832 (US) RIOUX, Philip R. North Berwick, ME 03906 (US)

(74)	Representative: Gittins, Alex Michael
	Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)

(54)	SYSTEM OF AN ENGINE AND CORRESPONDING APPARATUS

(57) Aspects of the disclosure are directed to a system (200) of an engine, comprising: a clearance control thermal ring (220), and a seal ring (216), where a radial gap (240) with respect to an axial centerline of the engine is formed between a radial end of the clearance control thermal ring (220) and a facing radial surface of the seal ring (216), where the clearance control thermal ring (220) is made of a first material and the seal ring (216) is made of a second material that is different from the first material, and where a first coefficient of thermal expansion of the first material is less than a second coefficient of thermal expansion of the second material.

Search report

Search report